Housing for a ventilating fan



FIG. 1 is perspective view of a housing for a ventilating fan showing mynew design;

FIG. 2 is a top plan view thereof, the bottom, right side and left sidebeing the same as the top shown;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof.

The ornamental design for a housing for a ventilating fan, as shown anddescribed.